This manual covers the Yamaha C55 ELRP outboard motor, manufactured in 1991. This 55 horsepower, 2-cylinder, inline, water-cooled outboard motor features a carbureted fuel system and an outboard lower unit transmission. Designed for marine applications, it offers reliable performance and durability, reflecting Yamaha's commitment to engineering excellence. Its 703 cc displacement and specific shaft length of 20 inches make it suitable for a variety of boat types. This Service Repair Maintenance Manual provides comprehensive guidance for the Yamaha C55 ELRP. It details disassembly, repair, assembly, and inspection procedures, supported by exploded diagrams. The manual is presented in English and is searchable and bookmarked for ease of use. It is an essential resource for owners, mechanics, and technicians seeking to maintain and repair this outboard motor, ensuring its continued optimal performance and longevity.